[ill0gicity]

If they have old URLs you can use the redirects under "Settings" -> "SEO". Oddly placed, but hey, the functionality is there. And for non-techies I think Weebly is wayyyy better than WordPress.

[dublinben]

What happens when the organization outgrows the features offered by Weebly, and wants to move their site to another host?

[ill0gicity]

There is an export site functionality which gives you everything: HTML, CSS, images, uploaded files, etc... I'd never actually tried it until now, so thank you :-)